Gast 0740 User Manual

WARNING

PLEASE READ THIS MANUAL COMPLETELY BEFORE INSTALLING AND USING

THIS MOTOR. SAVE THIS MANUAL FOR FUTURE REFERENCE AND

KEEP IN THE VICINITY OF THE MOTOR.

VACUUM PUMPS & COMPRESSORS

www.gastmfg.com

ISO 9001 & 14001 CERTIFIED

0440 Oilless

Thank you for purchasing this Gast product. It is manufactured to the highest standards

PART NO. 70 - 480 G405PL (REV-E)

OIL-LESS ROTARY VANE

OPERATION & MAINTENANCE MANUAL

3040 Oilless

using quality materials. Please follow all recommended maintenance, operational

and safety instructions and you will receive years of trouble free service.

General information

• Model numbers ending in “X” have automatic thermal protectors which protect the motor by shutting the motor off if it overheats. The motor will automatically restart once the motor has cooled.

Product Use Criteria:

• Pump only clean, dry air.

• Operate at 32ºF - 104ºF (0ºC - 40ºC).

• Protect unit from dirt & moisture.

• Do not pump flammable or explosive gases or

use in an atmosphere that contains such gases.

• Protect all surrounding items from exhaust air. This

exhaust air can become very hot.

• Corrosive gases and particulate material will

damage unit. Water vapor, oil-based contaminants or other liquids must be filtered out.

• Consult your Gast Distributor before using at high altitudes.

• Oil-Less rotary-vanes require NO lubrication.

• Sealed bearings are grease packed.

• Use of petroleum or hydrocarbon products will reduce carbon-vane service life.

INSTALLATION

WARNING

DANGER

Your safety and the safety of others

is extremely important.

We have provided many important safety messages in this manual and on your product. Always read and obey all safety messages.

This is the safety alert symbol. This symbol alerts you to hazards that can kill or hurt you and others. The safety alert symbol and the words “DANGER” and “WARNING” will precede all safety messages. These words mean:

You will

be killed or seriously injured if you don’t

follow instructions.

You can

be killed or seriously injured if you don’t

follow instructions.

All safety messages will identify the hazard, tell you how to reduce the chance of injury, and tell you what can happen if the safety instructions are not followed.

Plumbing

Remove plugs from the IN and OUT ports. Connect with pipe and fittings that are the same size or larger than the product’s threaded ports.

Accessories

The product’s internal intake and exhaust filters will provide adequate filtration in most applications. Check filters periodically and replace when necessary. All have an intake and exhaust filter to prevent contaminants from entering the pump or the pneumatic system. Please consult your Gast Distributor/Representative for additional filter recommendations.

Install relief valves and gauges at inlet or outlet, or both, to monitor performance. Check valves may be required to prevent back streaming through the pump.

Motor Control It is your responsibility to contact a qualified electrician to assure that the electrical installation is adequate and in conformance with all national and local codes and ordinances.

Determine the correct overload setting required to protect the motor (see motor starter manufacturer’s recommendations). Select fuses, motor protective switches or thermal protective switches to provide protection. Fuses act as short circuit protection for the motor, not as protection against overload. Incoming line fuses help to withstand the motor’s starting current. Motor starters with thermal magnetic overload or circuit breakers protect motor from overload or reduced voltage conditions.

units should

Correct installation is your responsibility. Make sure you have the proper installation conditions and that installation clearances do not block air flow. Proper guards should be installed to prevent contact with moveable parts of this pump. Do Not lift the unit by the fan shroud.

Blocking air flow over the product in any way can cause the product to overheat.

Mounting This product can be installed in any orientation. Mounting the product to a stable, rigid operating surface and using shock mounts will reduce noise and vibration.

The wiring diagram supplied with the product provides required electrical information. Check that power source is correct to properly operate the dual-voltage motors.

Electrical Connection

Model with a power supply cord:

This product must be grounded. For either 120-volt or 220/240-volt circuits connect power supply cord grounding plug to a matching grounded outlet. Do not use an adapter. (See DIAGRAM A)

In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric current. This product may be equipped with a power supply cord having a grounding wire with an appropriate grounding plug. The plug must be plugged into an outlet that is properly installed and grounded in accordance with all local codes and ordinances.

Check with a qualified electrician or serviceman if the grounding instructions are not completely understood, or if you are not sure whether the product is properly grounded. Do not modify the plug provided. If it will not fit the outlet, have the proper outlet installed by a qualified electrician.

Model that is permanently wired: This product must be connected to a grounded, metallic, permanent wiring system, or an equipment grounding terminal or lead on the product.

Power supply wiring must conform to all required safety codes and be installed by a qualified person. Check that supply voltage agrees with that listed on product nameplate.

Be sure the 3-phase motor turns in the proper direction of rotation after installation. Turning in the wrong direction will drastically reduce vane life.

Extension cords: Use only a 3-wire extension cord that has a 3-blade grounding plug. Connect extension cord plug to a matching 3-slot receptacle. Do not use an adapter. Make sure your extension cord is in good condition. Check that the gage wire of the extension cord is the correct size wire to carry the current this product will draw.

OPERATION

Minimum gage for extension cords

Amps Volts Length of cord in feet

120v 25 50 100 150 200 250 300 400 500 240v 50 100 200 300 400 500 600 800 1000

0-2 18 18 18 16 16 14 14 12 12 2-3 18 18 16 14 14 12 12 10 10 3-4 18 18 16 14 12 12 10 10 8 4-5 18 18 14 12 12 10 10 88 5-6 18 16 14 12 10 10 888 6-8 18 16 12 10 10 8666 8-10 18 14 12 10 88664 10-12 16 14 10 886644 12-14 16 12 10 866642 14-16 16 12 10 866442 16-18 14 12 8864422 18-20 14 12 8664422

It is your responsibility to operate this product at recommended pressures or vacuum duties and room ambient temperatures. Do Not start against a vacuum or pressure load.

Start Up

If motor fails to start or slows down significantly under load, shut off and disconnect from power supply. Check that the voltage is correct for motor and that motor is turning in the proper direction. Vane life will be drastically reduced if motor is not operating properly. Vanes can break or be damaged if motor/pump runs in the wrong direction.

MAINTENANCE

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